---
id: 60f1922fcbd2410527b3bd89
title: Step 7
challengeType: 0
dashedName: step-7
---
# --description--
To spruce the project up, let us add some CSS. Begin by giving the `body` a `width` of `100%`, and a `height` of `100vh`.
# --hints--
You should use the `body` element selector.
```js
assert.exists(new __helpers.CSSHelp(document).getStyle('body'));
```
You should give the `body` a `width` of `100%`.
```js
assert.equal(new __helpers.CSSHelp(document).getStyle('body')?.width, '100%');
```
You should give the `body` a `height` of `100vh`.
```js
assert.equal(new __helpers.CSSHelp(document).getStyle('body')?.height, '100vh');
```
# --seed--
## --seed-contents--
```html
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